Does biochar promote reclaimed soil qualities?
Soil, taken from lake bottom and river bed, the selective sources of top soil construction in land reclamation, need to be improved with their properties in general.Biochar can be used to improve some soil quality.In this research, produced five different kinds of straw biochar at corresponding pyrolysis temperatures respectively and used 3 added levels into 2 kinds of soil followed seeding ryegrass to check alteration of soil quality.After the application of biochar, it decreases soil chroma with 1-3 units in sandy soil and 1-4 units in clay soil.Electrical Conductivity (EC) of soil is increased significantly and pH of soil is moderated after 30 days plantation of ryegrass.In the addition of biochar, MSA increases significantly but doesnt change WSA significantly.Furthermore, ryegrass planted soils was promoted significantly in height.It conclude that the production of different types biochars must be relating to enhancement of soil properties through specific pyrolysis conditions and soil types.
Straw biochar Soil properties Soil quality Ryegrass
Z.Cai T.Zheng M.Ahsan H.Wang Z.F.Bian
School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xu Institute of Soil Science, Chinese Academy of Science, Nanjing, China
国际会议
The 2nd International Symposium on Land Reclamation and Ecological Restoration (第二届国际土地复垦与生态修复学术研讨会)
西安
英文
547-553
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）